A high-end job comes with a high-end price: Prepare to spend between $4,000 to $8,000. Some quotes are even as high as $20,000. High-end jobs often require the paint shop to use high-end paints, which may cost hundreds of dollars for a single quart.
Physical changes occur when objects or substances undergo a change that does not change their chemical composition. This contrasts with the concept of chemical change in which the composition of a substance changes or one or more substances combine or break up to form new substances.
In a physical change the nature of the substance, the particles of which it is composed and the numbers of particles remain unchanged. In a chemical change the properties of the new substances are different from the original, the particles are different and the number of particles can change. While the distinction between physical and chemical change is a useful one it should be seen as more of a continuum. Chemical reactions can be reversed but this can be difficult in practice. Explore the relationships between ideas about physical and chemical change in the Concept Development Maps - (States of Matter, Chemical Reactions)